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New paradigms for interactive 3D volume segmentation

Abstract

We present a new virtual reality-based interaction metaphor for
semi-automatic segmentation of medical 3D volume data. The mouse-based,
manual initialization of deformable surfaces in 3D represents a major
bottleneck in interactive segmentation. In our multi-modal system
we enhance this process with additional sensory feedback. A 3D
haptic device is used to extract the centerline of a tubular
structure. Based on the obtained path a cylinder with varying
diameter is generated which in turn is used as the initial guess
for a deformable surface.